Team DIANA / mbed-src

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependents:   MX106-finaltest

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_STM32L1/serial_api.c@636:2405a6d45c2c, 2016-05-23 (annotated)

Committer:
dconsoli
Date:
Mon May 23 02:17:28 2016 +0000
Revision:
636:2405a6d45c2c
Parent:
522:aee49fe30179 
I don't know;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 *******************************************************************************
mbed_official 76:aeb1df146756 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 4 * All rights reserved.
mbed_official 76:aeb1df146756 5 *
mbed_official 76:aeb1df146756 6 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 7 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 8 *
mbed_official 76:aeb1df146756 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 10 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 13 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 15 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 16 * without specific prior written permission.
mbed_official 76:aeb1df146756 17 *
mbed_official 76:aeb1df146756 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 28 *******************************************************************************
mbed_official 76:aeb1df146756 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 76:aeb1df146756 31 #include "serial_api.h"
mbed_official 174:8bb9f3a33240 32
mbed_official 174:8bb9f3a33240 33 #if DEVICE_SERIAL
mbed_official 174:8bb9f3a33240 34
mbed_official 76:aeb1df146756 35 #include "cmsis.h"
mbed_official 76:aeb1df146756 36 #include "pinmap.h"
mbed_official 76:aeb1df146756 37 #include <string.h>
mbed_official 414:4ec4c5b614b0 38 #include "PeripheralPins.h"
mbed_official 76:aeb1df146756 39
mbed_official 118:b44c45162f28 40 #define UART_NUM (5)
mbed_official 76:aeb1df146756 41
mbed_official 354:e67efb2aab0e 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0};
mbed_official 76:aeb1df146756 43
mbed_official 76:aeb1df146756 44 static uart_irq_handler irq_handler;
mbed_official 76:aeb1df146756 45
mbed_official 354:e67efb2aab0e 46 UART_HandleTypeDef UartHandle;
mbed_official 354:e67efb2aab0e 47
mbed_official 76:aeb1df146756 48 int stdio_uart_inited = 0;
mbed_official 76:aeb1df146756 49 serial_t stdio_uart;
mbed_official 76:aeb1df146756 50
mbed_official 354:e67efb2aab0e 51 static void init_uart(serial_t *obj)
mbed_official 354:e67efb2aab0e 52 {
mbed_official 354:e67efb2aab0e 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 54
mbed_official 354:e67efb2aab0e 55 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 354:e67efb2aab0e 56 UartHandle.Init.WordLength = obj->databits;
mbed_official 354:e67efb2aab0e 57 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 354:e67efb2aab0e 58 UartHandle.Init.Parity = obj->parity;
mbed_official 354:e67efb2aab0e 59 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 242:7074e42da0b2 60
mbed_official 242:7074e42da0b2 61 if (obj->pin_rx == NC) {
mbed_official 354:e67efb2aab0e 62 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 242:7074e42da0b2 63 } else if (obj->pin_tx == NC) {
mbed_official 354:e67efb2aab0e 64 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 242:7074e42da0b2 65 } else {
mbed_official 354:e67efb2aab0e 66 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 242:7074e42da0b2 67 }
mbed_official 242:7074e42da0b2 68
mbed_official 354:e67efb2aab0e 69 HAL_UART_Init(&UartHandle);
mbed_official 76:aeb1df146756 70 }
mbed_official 76:aeb1df146756 71
mbed_official 354:e67efb2aab0e 72 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 354:e67efb2aab0e 73 {
mbed_official 76:aeb1df146756 74 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 76:aeb1df146756 75 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 76 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 174:8bb9f3a33240 77
mbed_official 76:aeb1df146756 78 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 76:aeb1df146756 79 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 80 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 76:aeb1df146756 81
mbed_official 354:e67efb2aab0e 82 // Enable UART clock
mbed_official 76:aeb1df146756 83 if (obj->uart == UART_1) {
mbed_official 354:e67efb2aab0e 84 __USART1_CLK_ENABLE();
mbed_official 215:83cf97a28428 85 obj->index = 0;
mbed_official 76:aeb1df146756 86 }
mbed_official 354:e67efb2aab0e 87
mbed_official 76:aeb1df146756 88 if (obj->uart == UART_2) {
mbed_official 354:e67efb2aab0e 89 __USART2_CLK_ENABLE();
mbed_official 215:83cf97a28428 90 obj->index = 1;
mbed_official 76:aeb1df146756 91 }
mbed_official 354:e67efb2aab0e 92
mbed_official 129:0182c99221bc 93 if (obj->uart == UART_3) {
mbed_official 354:e67efb2aab0e 94 __USART3_CLK_ENABLE();
mbed_official 215:83cf97a28428 95 obj->index = 2;
mbed_official 118:b44c45162f28 96 }
mbed_official 354:e67efb2aab0e 97
mbed_official 522:aee49fe30179 98 #if defined(USART4_BASE)
mbed_official 129:0182c99221bc 99 if (obj->uart == UART_4) {
mbed_official 354:e67efb2aab0e 100 __UART4_CLK_ENABLE();
mbed_official 215:83cf97a28428 101 obj->index = 3;
mbed_official 118:b44c45162f28 102 }
mbed_official 522:aee49fe30179 103 #endif
mbed_official 522:aee49fe30179 104 #if defined(USART5_BASE)
mbed_official 129:0182c99221bc 105 if (obj->uart == UART_5) {
mbed_official 354:e67efb2aab0e 106 __UART5_CLK_ENABLE();
mbed_official 215:83cf97a28428 107 obj->index = 4;
mbed_official 118:b44c45162f28 108 }
mbed_official 522:aee49fe30179 109 #endif
mbed_official 129:0182c99221bc 110
mbed_official 76:aeb1df146756 111 // Configure the UART pins
mbed_official 76:aeb1df146756 112 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 113 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 414:4ec4c5b614b0 114 if (tx != NC) {
mbed_official 339:40bd4701f3e2 115 pin_mode(tx, PullUp);
mbed_official 339:40bd4701f3e2 116 }
mbed_official 414:4ec4c5b614b0 117 if (rx != NC) {
mbed_official 339:40bd4701f3e2 118 pin_mode(rx, PullUp);
mbed_official 339:40bd4701f3e2 119 }
mbed_official 76:aeb1df146756 120
mbed_official 76:aeb1df146756 121 // Configure UART
mbed_official 76:aeb1df146756 122 obj->baudrate = 9600;
mbed_official 354:e67efb2aab0e 123 obj->databits = UART_WORDLENGTH_8B;
mbed_official 354:e67efb2aab0e 124 obj->stopbits = UART_STOPBITS_1;
mbed_official 354:e67efb2aab0e 125 obj->parity = UART_PARITY_NONE;
mbed_official 354:e67efb2aab0e 126 obj->pin_tx = tx;
mbed_official 354:e67efb2aab0e 127 obj->pin_rx = rx;
mbed_official 76:aeb1df146756 128
mbed_official 354:e67efb2aab0e 129 init_uart(obj);
mbed_official 174:8bb9f3a33240 130
mbed_official 76:aeb1df146756 131 // For stdio management
mbed_official 76:aeb1df146756 132 if (obj->uart == STDIO_UART) {
mbed_official 76:aeb1df146756 133 stdio_uart_inited = 1;
mbed_official 76:aeb1df146756 134 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 174:8bb9f3a33240 135 }
mbed_official 76:aeb1df146756 136 }
mbed_official 76:aeb1df146756 137
mbed_official 354:e67efb2aab0e 138 void serial_free(serial_t *obj)
mbed_official 354:e67efb2aab0e 139 {
mbed_official 215:83cf97a28428 140 // Reset UART and disable clock
mbed_official 215:83cf97a28428 141 if (obj->uart == UART_1) {
mbed_official 354:e67efb2aab0e 142 __USART1_FORCE_RESET();
mbed_official 354:e67efb2aab0e 143 __USART1_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 144 __USART1_CLK_DISABLE();
mbed_official 215:83cf97a28428 145 }
mbed_official 354:e67efb2aab0e 146
mbed_official 215:83cf97a28428 147 if (obj->uart == UART_2) {
mbed_official 354:e67efb2aab0e 148 __USART2_FORCE_RESET();
mbed_official 354:e67efb2aab0e 149 __USART2_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 150 __USART2_CLK_DISABLE();
mbed_official 215:83cf97a28428 151 }
mbed_official 354:e67efb2aab0e 152
mbed_official 215:83cf97a28428 153 if (obj->uart == UART_3) {
mbed_official 354:e67efb2aab0e 154 __USART3_FORCE_RESET();
mbed_official 354:e67efb2aab0e 155 __USART3_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 156 __USART3_CLK_DISABLE();
mbed_official 215:83cf97a28428 157 }
mbed_official 354:e67efb2aab0e 158
mbed_official 522:aee49fe30179 159 #if defined(USART4_BASE)
mbed_official 215:83cf97a28428 160 if (obj->uart == UART_4) {
mbed_official 354:e67efb2aab0e 161 __UART4_FORCE_RESET();
mbed_official 354:e67efb2aab0e 162 __UART4_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 163 __UART4_CLK_DISABLE();
mbed_official 215:83cf97a28428 164 }
mbed_official 522:aee49fe30179 165 #endif
mbed_official 522:aee49fe30179 166 #if defined(USART5_BASE)
mbed_official 215:83cf97a28428 167 if (obj->uart == UART_5) {
mbed_official 354:e67efb2aab0e 168 __UART5_FORCE_RESET();
mbed_official 354:e67efb2aab0e 169 __UART5_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 170 __UART5_CLK_DISABLE();
mbed_official 215:83cf97a28428 171 }
mbed_official 522:aee49fe30179 172 #endif
mbed_official 215:83cf97a28428 173
mbed_official 215:83cf97a28428 174 // Configure GPIOs
mbed_official 354:e67efb2aab0e 175 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 354:e67efb2aab0e 176 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 177
mbed_official 76:aeb1df146756 178 serial_irq_ids[obj->index] = 0;
mbed_official 76:aeb1df146756 179 }
mbed_official 76:aeb1df146756 180
mbed_official 354:e67efb2aab0e 181 void serial_baud(serial_t *obj, int baudrate)
mbed_official 354:e67efb2aab0e 182 {
mbed_official 76:aeb1df146756 183 obj->baudrate = baudrate;
mbed_official 354:e67efb2aab0e 184 init_uart(obj);
mbed_official 76:aeb1df146756 185 }
mbed_official 76:aeb1df146756 186
mbed_official 354:e67efb2aab0e 187 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 354:e67efb2aab0e 188 {
mbed_official 242:7074e42da0b2 189 if (data_bits == 9) {
mbed_official 354:e67efb2aab0e 190 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 191 } else {
mbed_official 354:e67efb2aab0e 192 obj->databits = UART_WORDLENGTH_8B;
mbed_official 76:aeb1df146756 193 }
mbed_official 76:aeb1df146756 194
mbed_official 76:aeb1df146756 195 switch (parity) {
mbed_official 174:8bb9f3a33240 196 case ParityOdd:
mbed_official 174:8bb9f3a33240 197 case ParityForced0:
mbed_official 354:e67efb2aab0e 198 obj->parity = UART_PARITY_ODD;
mbed_official 174:8bb9f3a33240 199 break;
mbed_official 174:8bb9f3a33240 200 case ParityEven:
mbed_official 174:8bb9f3a33240 201 case ParityForced1:
mbed_official 354:e67efb2aab0e 202 obj->parity = UART_PARITY_EVEN;
mbed_official 174:8bb9f3a33240 203 break;
mbed_official 174:8bb9f3a33240 204 default: // ParityNone
mbed_official 354:e67efb2aab0e 205 obj->parity = UART_PARITY_NONE;
mbed_official 174:8bb9f3a33240 206 break;
mbed_official 76:aeb1df146756 207 }
mbed_official 174:8bb9f3a33240 208
mbed_official 76:aeb1df146756 209 if (stop_bits == 2) {
mbed_official 354:e67efb2aab0e 210 obj->stopbits = UART_STOPBITS_2;
mbed_official 174:8bb9f3a33240 211 } else {
mbed_official 354:e67efb2aab0e 212 obj->stopbits = UART_STOPBITS_1;
mbed_official 76:aeb1df146756 213 }
mbed_official 76:aeb1df146756 214
mbed_official 354:e67efb2aab0e 215 init_uart(obj);
mbed_official 76:aeb1df146756 216 }
mbed_official 76:aeb1df146756 217
mbed_official 76:aeb1df146756 218 /******************************************************************************
mbed_official 76:aeb1df146756 219 * INTERRUPTS HANDLING
mbed_official 76:aeb1df146756 220 ******************************************************************************/
mbed_official 76:aeb1df146756 221
mbed_official 354:e67efb2aab0e 222 static void uart_irq(UARTName name, int id)
mbed_official 354:e67efb2aab0e 223 {
mbed_official 354:e67efb2aab0e 224 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 76:aeb1df146756 225 if (serial_irq_ids[id] != 0) {
mbed_official 354:e67efb2aab0e 226 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 76:aeb1df146756 227 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 354:e67efb2aab0e 228 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 76:aeb1df146756 229 }
mbed_official 354:e67efb2aab0e 230 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 76:aeb1df146756 231 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 354:e67efb2aab0e 232 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 76:aeb1df146756 233 }
mbed_official 76:aeb1df146756 234 }
mbed_official 76:aeb1df146756 235 }
mbed_official 76:aeb1df146756 236
mbed_official 354:e67efb2aab0e 237 static void uart1_irq(void)
mbed_official 354:e67efb2aab0e 238 {
mbed_official 354:e67efb2aab0e 239 uart_irq(UART_1, 0);
mbed_official 174:8bb9f3a33240 240 }
mbed_official 354:e67efb2aab0e 241
mbed_official 354:e67efb2aab0e 242 static void uart2_irq(void)
mbed_official 354:e67efb2aab0e 243 {
mbed_official 354:e67efb2aab0e 244 uart_irq(UART_2, 1);
mbed_official 174:8bb9f3a33240 245 }
mbed_official 76:aeb1df146756 246
mbed_official 354:e67efb2aab0e 247 static void uart3_irq(void)
mbed_official 354:e67efb2aab0e 248 {
mbed_official 354:e67efb2aab0e 249 uart_irq(UART_3, 2);
mbed_official 354:e67efb2aab0e 250 }
mbed_official 354:e67efb2aab0e 251
mbed_official 522:aee49fe30179 252 #if defined(USART4_BASE)
mbed_official 354:e67efb2aab0e 253 static void uart4_irq(void)
mbed_official 354:e67efb2aab0e 254 {
mbed_official 354:e67efb2aab0e 255 uart_irq(UART_4, 3);
mbed_official 354:e67efb2aab0e 256 }
mbed_official 522:aee49fe30179 257 #endif
mbed_official 354:e67efb2aab0e 258
mbed_official 522:aee49fe30179 259 #if defined(USART5_BASE)
mbed_official 354:e67efb2aab0e 260 static void uart5_irq(void)
mbed_official 354:e67efb2aab0e 261 {
mbed_official 354:e67efb2aab0e 262 uart_irq(UART_5, 4);
mbed_official 354:e67efb2aab0e 263 }
mbed_official 522:aee49fe30179 264 #endif
mbed_official 354:e67efb2aab0e 265
mbed_official 354:e67efb2aab0e 266 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 354:e67efb2aab0e 267 {
mbed_official 76:aeb1df146756 268 irq_handler = handler;
mbed_official 76:aeb1df146756 269 serial_irq_ids[obj->index] = id;
mbed_official 76:aeb1df146756 270 }
mbed_official 76:aeb1df146756 271
mbed_official 354:e67efb2aab0e 272 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 354:e67efb2aab0e 273 {
mbed_official 76:aeb1df146756 274 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 76:aeb1df146756 275 uint32_t vector = 0;
mbed_official 354:e67efb2aab0e 276
mbed_official 354:e67efb2aab0e 277 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 278
mbed_official 76:aeb1df146756 279 if (obj->uart == UART_1) {
mbed_official 174:8bb9f3a33240 280 irq_n = USART1_IRQn;
mbed_official 174:8bb9f3a33240 281 vector = (uint32_t)&uart1_irq;
mbed_official 76:aeb1df146756 282 }
mbed_official 174:8bb9f3a33240 283
mbed_official 76:aeb1df146756 284 if (obj->uart == UART_2) {
mbed_official 174:8bb9f3a33240 285 irq_n = USART2_IRQn;
mbed_official 174:8bb9f3a33240 286 vector = (uint32_t)&uart2_irq;
mbed_official 76:aeb1df146756 287 }
mbed_official 129:0182c99221bc 288
mbed_official 118:b44c45162f28 289 if (obj->uart == UART_3) {
mbed_official 174:8bb9f3a33240 290 irq_n = USART3_IRQn;
mbed_official 174:8bb9f3a33240 291 vector = (uint32_t)&uart3_irq;
mbed_official 118:b44c45162f28 292 }
mbed_official 129:0182c99221bc 293
mbed_official 522:aee49fe30179 294 #if defined(USART4_BASE)
mbed_official 118:b44c45162f28 295 if (obj->uart == UART_4) {
mbed_official 174:8bb9f3a33240 296 irq_n = UART4_IRQn;
mbed_official 174:8bb9f3a33240 297 vector = (uint32_t)&uart4_irq;
mbed_official 118:b44c45162f28 298 }
mbed_official 522:aee49fe30179 299 #endif
mbed_official 129:0182c99221bc 300
mbed_official 522:aee49fe30179 301 #if defined(USART5_BASE)
mbed_official 118:b44c45162f28 302 if (obj->uart == UART_5) {
mbed_official 174:8bb9f3a33240 303 irq_n = UART5_IRQn;
mbed_official 174:8bb9f3a33240 304 vector = (uint32_t)&uart5_irq;
mbed_official 118:b44c45162f28 305 }
mbed_official 522:aee49fe30179 306 #endif
mbed_official 174:8bb9f3a33240 307
mbed_official 76:aeb1df146756 308 if (enable) {
mbed_official 174:8bb9f3a33240 309
mbed_official 76:aeb1df146756 310 if (irq == RxIrq) {
mbed_official 354:e67efb2aab0e 311 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 174:8bb9f3a33240 312 } else { // TxIrq
mbed_official 354:e67efb2aab0e 313 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 174:8bb9f3a33240 314 }
mbed_official 174:8bb9f3a33240 315
mbed_official 76:aeb1df146756 316 NVIC_SetVector(irq_n, vector);
mbed_official 76:aeb1df146756 317 NVIC_EnableIRQ(irq_n);
mbed_official 174:8bb9f3a33240 318
mbed_official 76:aeb1df146756 319 } else { // disable
mbed_official 174:8bb9f3a33240 320
mbed_official 76:aeb1df146756 321 int all_disabled = 0;
mbed_official 174:8bb9f3a33240 322
mbed_official 76:aeb1df146756 323 if (irq == RxIrq) {
mbed_official 354:e67efb2aab0e 324 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 76:aeb1df146756 325 // Check if TxIrq is disabled too
mbed_official 354:e67efb2aab0e 326 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 174:8bb9f3a33240 327 } else { // TxIrq
mbed_official 354:e67efb2aab0e 328 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 76:aeb1df146756 329 // Check if RxIrq is disabled too
mbed_official 354:e67efb2aab0e 330 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 76:aeb1df146756 331 }
mbed_official 174:8bb9f3a33240 332
mbed_official 76:aeb1df146756 333 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 174:8bb9f3a33240 334
mbed_official 174:8bb9f3a33240 335 }
mbed_official 76:aeb1df146756 336 }
mbed_official 76:aeb1df146756 337
mbed_official 76:aeb1df146756 338 /******************************************************************************
mbed_official 76:aeb1df146756 339 * READ/WRITE
mbed_official 76:aeb1df146756 340 ******************************************************************************/
mbed_official 76:aeb1df146756 341
mbed_official 354:e67efb2aab0e 342 int serial_getc(serial_t *obj)
mbed_official 354:e67efb2aab0e 343 {
mbed_official 354:e67efb2aab0e 344 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 345 while (!serial_readable(obj));
mbed_official 354:e67efb2aab0e 346 return (int)(uart->DR & 0xFF);
mbed_official 76:aeb1df146756 347 }
mbed_official 76:aeb1df146756 348
mbed_official 354:e67efb2aab0e 349 void serial_putc(serial_t *obj, int c)
mbed_official 354:e67efb2aab0e 350 {
mbed_official 354:e67efb2aab0e 351 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 352 while (!serial_writable(obj));
mbed_official 354:e67efb2aab0e 353 uart->DR = (uint32_t)(c & 0xFF);
mbed_official 76:aeb1df146756 354 }
mbed_official 76:aeb1df146756 355
mbed_official 354:e67efb2aab0e 356 int serial_readable(serial_t *obj)
mbed_official 354:e67efb2aab0e 357 {
mbed_official 76:aeb1df146756 358 int status;
mbed_official 354:e67efb2aab0e 359 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 360 // Check if data is received
mbed_official 354:e67efb2aab0e 361 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 362 return status;
mbed_official 76:aeb1df146756 363 }
mbed_official 76:aeb1df146756 364
mbed_official 354:e67efb2aab0e 365 int serial_writable(serial_t *obj)
mbed_official 354:e67efb2aab0e 366 {
mbed_official 76:aeb1df146756 367 int status;
mbed_official 354:e67efb2aab0e 368 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 369 // Check if data is transmitted
mbed_official 354:e67efb2aab0e 370 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 371 return status;
mbed_official 76:aeb1df146756 372 }
mbed_official 76:aeb1df146756 373
mbed_official 354:e67efb2aab0e 374 void serial_clear(serial_t *obj)
mbed_official 354:e67efb2aab0e 375 {
mbed_official 354:e67efb2aab0e 376 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 354:e67efb2aab0e 377 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 354:e67efb2aab0e 378 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 76:aeb1df146756 379 }
mbed_official 76:aeb1df146756 380
mbed_official 354:e67efb2aab0e 381 void serial_pinout_tx(PinName tx)
mbed_official 354:e67efb2aab0e 382 {
mbed_official 76:aeb1df146756 383 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 384 }
mbed_official 76:aeb1df146756 385
mbed_official 354:e67efb2aab0e 386 void serial_break_set(serial_t *obj)
mbed_official 354:e67efb2aab0e 387 {
mbed_official 354:e67efb2aab0e 388 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 354:e67efb2aab0e 389 HAL_LIN_SendBreak(&UartHandle);
mbed_official 76:aeb1df146756 390 }
mbed_official 76:aeb1df146756 391
mbed_official 354:e67efb2aab0e 392 void serial_break_clear(serial_t *obj)
mbed_official 354:e67efb2aab0e 393 {
mbed_official 76:aeb1df146756 394 }
mbed_official 174:8bb9f3a33240 395
mbed_official 174:8bb9f3a33240 396 #endif